I don't agree on that point. Bitcoin is a store of value. It doesn't loose its value with time contrary to FIAT money.
You cannot get stolen if you use an offline paper wallet.
The variation on the short term doesn't matter as long as it get value on long term which is the case.
Yes, but it would loose the value IF the Bitcoin network would stop operating, right? We all know that there is an extremely small chance for this to happen, but if someone would want to make government to recognize this, shouldn't there be some formal proof? (I am just asking).